Claims
- 1. A thermoplastic resin composition having excellent impact resistance, weather resistance and moldability which comprises (A) a graft copolymer resin (3) obtained by polymerizing 10 to 95 parts by weight of at least one monomer (2) selected from the group consisting of aromatic vinyl compounds and ethylenically unsaturated compounds of the formula:
- CH.sub.2 .dbd.CRX
- where R is --H or --CH.sub.3, X is --CN or --COOR.sup.1, and R.sup.1 is an alkyl group having 1 to 8 carbon atoms, in the presence of 90 to 5 parts by weight (on a solid basis) of a latex of a composite-structured crosslinked acrylic rubber (1) whose particles are composed of 2 to 80% by weight of a core consisting of a diene rubber (i) enlarged by treatment with an acid group-containing copolymer latex to an average particle diameter of 0.15-1 micron, and 20 to 98% by weight of an outer layer consisting of a crosslinked acrylate polymer (ii) derived from an acrylic ester as the main component and formed by the combined use of a graft-linking agent and a cross-linking agent, the total amount of (1) and (2) being 100 parts by weight.
- 2. A thermoplastic resin composition as claimed in claim 1 wherein the graft-linking agent is at least one compound selected from the group consisting of allyl methacrylate, triallyl cyanurate and triallyl isocyanurate.
- 3. A thermoplastic resin composition as claimed in claim 1 wherein the cross-linking agent is at least one compound selected from the group consisting of ethylene glycol dimethacrylate, 1,3-butanediol dimethacrylate and divinylbenzene.
- 4. A process for the preparation of a thermoplastic resin composition having excellent impact resistance, weather resistance and moldability which comprises (A) forming a graft copolymer resin (3) by polymerizing 10 to 95 parts by weight of at least one monomer (2) selected from the group consisting of aromatic vinyl compounds and ethylenically unsaturated compounds of the formula:
- CH.sub.2 .dbd.CRX
- where R is --H or --CH.sub.3, X is --CN or --COOR.sup.1, and R.sup.1 is an alkyl group having 1 to 8 carbon atoms, in the presence of 90 to 5 parts by weight (on a solid basis) of a latex of a composite-structured crosslinked acrylic rubber (1) whose particles are composed of 2 to 80% by weight of a core consisting of a diene rubber (i) enlarged by treatment with an acid group-containing copolymer latex to an average particle diameter of 0.15-1 micron, and 20 to 98% by weight of an outer layer consisting of a crosslinked acrylate polymer (ii) derived from an acrylic ester as the main component and formed by the combined use of a graft-linking agent and a cross-linking agent, the total amount of (1) and (2) being 100 parts by weight.
- 5. A process for the preparation of a thermoplastic resin composition as claimed in claim 4 wherein the graft-linking agent is at least one compound selected from the group consisting of allyl methacrylate, triallyl cyanurate and triallyl isocyanurate.
- 6. A process for the preparation of a thermoplastic resin composition as claimed in claim 4 wherein the cross-linking agent is at least one compound selected from the group consisting of ethylene glycol dimethacrylate, 1,3-butanediol dimethacrylate and divinylbenzene.
Priority Claims (1)
Number |
Date |
Country |
Kind |
61-24533 |
Feb 1986 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 010,426, filed on Feb. 3, 1987, now U.S. Pat. No. 4,912,162.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4393172 |
Lindner et al. |
Jul 1983 |
|
4912162 |
Kishida et al. |
Mar 1990 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
034748 |
Sep 1981 |
EPX |
077038 |
Apr 1983 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
10426 |
Feb 1987 |
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